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  Tutorial: Variables

Variables are places in memory to store values.

Tutorial Details:

Variables are places in memory to store values. There are different kinds of variables, and every language offers slightly different characteristics.

Name.

Data Type specifies the kinds of data a variable an store. Java has two general kinds of data types.

8 basic or primitive types (byte, short, int, long, float, double, char, boolean).

An unlimited number of object types (String, Color, JButton, ...). Java object variables hold a reference (pointer) to the the object, not the object, which is always stored on the heap.


 

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